angular
diff --git a/‎packages/zone.js/test/browser/MutationObserver.spec.ts‎
Lines changed: 7 additions & 0 deletions b/‎packages/zone.js/test/browser/MutationObserver.spec.ts‎
Lines changed: 7 additions & 0 deletions
diff --git a/‎packages/zone.js/test/browser/XMLHttpRequest.spec.ts‎
Lines changed: 1 addition & 0 deletions b/‎packages/zone.js/test/browser/XMLHttpRequest.spec.ts‎
Lines changed: 1 addition & 0 deletions
@@ -15,11 +15,18 @@ describe('MutationObserver', ifEnvSupports('MutationObserver', function() {
 
            beforeEach(function() {
              elt = document.createElement('div');
+             document.body.appendChild(elt);
+           });
+
+           afterEach(function() {
+             document.body.removeChild(elt);
            });
 
            it('should run observers within the zone', function(done) {
              const testZone = Zone.current.fork({name: 'test'});
              let ob;
+             elt = document.createElement('div');
+             document.body.appendChild(elt);
 
              testZone.run(function() {
                ob = new MutationObserver(function() {
 
@@ -50,6 +50,7 @@ describe('XMLHttpRequest', function() {
         if ((req as any)[zoneSymbol('loadfalse')]) {
           expect(logs).toEqual(['onload']);
         }
+        onStable = null;
         done();
       };
Original file line number	Diff line number	Diff line change
`@@ -50,6 +50,7 @@ describe('XMLHttpRequest', function() {`
`50`	`50`	`if ((req as any)[zoneSymbol('loadfalse')]) {`
`51`	`51`	`expect(logs).toEqual(['onload']);`
`52`	`52`	`}`
	`53`	`+ onStable = null;`
`53`	`54`	`done();`
`54`	`55`	`};`
`55`	`56`